/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alibaba.rsqldb.parser.parser;

import com.alibaba.rsqldb.parser.parser.builder.AbstractSQLBuilder;
import com.alibaba.rsqldb.parser.parser.result.IParseResult;
import com.alibaba.rsqldb.parser.parser.result.NotSupportParseResult;
import org.apache.calcite.sql.SqlNode;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public abstract class AbstractSqlParser<T, DESCRIPTOR extends AbstractSQLBuilder> implements ISqlParser<T, DESCRIPTOR> {

    private static final Log LOG = LogFactory.getLog(AbstractSqlParser.class);

    protected IParseResult parseSqlNode(DESCRIPTOR tableDescriptor, SqlNode sqlNode) {
        try {
            ISqlParser sqlParser = SQLNodeParserFactory.getParse(sqlNode);
            return sqlParser.parse(tableDescriptor, sqlNode);
        } catch (NullPointerException e) {
            tableDescriptor.setSupportOptimization(false);
            LOG.error("can not parser sql node " + sqlNode.toString(), e);
            return new NotSupportParseResult(sqlNode);
        }

    }

}
